(PbO)4Cl2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two hydrochloric acid molecules and two PbO sheets oriented in the (0, 0, 1) direction. In each PbO sheet, Pb is bonded in a 4-coordinate geometry to four equivalent O atoms. All Pb–O bond lengths are 2.35 Å. O is bonded to four equivalent Pb atoms to form a mixture of edge and corner-sharing OPb4 tetrahedra.
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